Synthesis and Biological Evaluation of 2-Acyl Analogues of Paclitaxel (Taxol)
作者:David G. I. Kingston、Ashok G. Chaudhary、Mahendra D. Chordia、Milind Gharpure、A. A. Leslie Gunatilaka、Paul I. Higgs、John M. Rimoldi、Lakshman Samala、Prakash G. Jagtap、Paraskevi Giannakakou、Yuan Q. Jiang、Chii M. Lin、Ernest Hamel、Byron H. Long、Craig R. Fairchild、Kathy A. Johnston
DOI:10.1021/jm980229d
日期:1998.9.1
The anticancer drug paclitaxel (Taxol) has been converted to a large number of 2-debenzoyl-2-aroyl derivatives by three different methods. The bioactivities of the resulting analogues were determined in both tubulin polymerization and cytotoxicity assays, and several analogues with enhanced activity as compared with paclitaxel were discovered. Correlation of cytotoxicity in three cell lines with tubulin polymerization activity showed reasonable agreement. Among the cell lines examined, the closest correlation with antitubulin activity was observed with a human ovarian carcinoma cell line.
Synthesis and Cytotoxicity of 7,9-O-Linked Macrocyclic C-Seco Taxoids
A series of novel 7,9-O-linked macrocyclic taxoids together with modification at the C2 position were synthesized, and their cytotoxicities against drug-sensitive and P-glycoprotein and βIII-tubulin overexpressed drug-resistant cancer cell lines were evaluated. It is demonstrated that C-seco taxoids conformationally constrained via carbonate containing-linked macrocyclization display increased cytotoxicity